tests: Add support for getting corefile patterns on FreeBSD

[vpp.git] / test / test_lb.py

diff --git a/test/test_lb.py b/test/test_lb.py
index 76fdd69..e44684e 100644 (file)
--- a/test/test_lb.py
+++ b/test/test_lb.py
@@ -1,21 +1,29 @@
 import socket
 import socket

-import unittest
-from logging import *

 
 

+import scapy.compat

 from scapy.layers.inet import IP, UDP
 from scapy.layers.inet6 import IPv6
 from scapy.layers.l2 import Ether, GRE
 from scapy.packet import Raw
 from scapy.layers.inet import IP, UDP
 from scapy.layers.inet6 import IPv6
 from scapy.layers.l2 import Ether, GRE
 from scapy.packet import Raw

+from scapy.data import IP_PROTOS

 
 from framework import VppTestCase
 
 from framework import VppTestCase

+from util import ppp
+from vpp_ip_route import VppIpRoute, VppRoutePath
+from vpp_ip import INVALID_INDEX

 
 """ TestLB is a subclass of  VPPTestCase classes.
 
  TestLB class defines Load Balancer test cases for:
 
 """ TestLB is a subclass of  VPPTestCase classes.
 
  TestLB class defines Load Balancer test cases for:

-  - IP4 to GRE4 encap
-  - IP4 to GRE6 encap
-  - IP6 to GRE4 encap
-  - IP6 to GRE6 encap
+  - IP4 to GRE4 encap on per-port vip case
+  - IP4 to GRE6 encap on per-port vip case
+  - IP6 to GRE4 encap on per-port vip case
+  - IP6 to GRE6 encap on per-port vip case
+  - IP4 to L3DSR encap on vip case
+  - IP4 to L3DSR encap on per-port vip case
+  - IP4 to L3DSR encap on per-port vip with src_ip_sticky case
+  - IP4 to NAT4 encap on per-port vip case
+  - IP6 to NAT6 encap on per-port vip case

 
  As stated in comments below, GRE has issues with IPv6.
  All test cases involving IPv6 are executed, but
 
  As stated in comments below, GRE has issues with IPv6.
  All test cases involving IPv6 are executed, but


@@ -25,7 +33,7 @@ from framework import VppTestCase
 
 
 class TestLB(VppTestCase):
 
 
 class TestLB(VppTestCase):

-    """ Load Balancer Test Case """
+    """Load Balancer Test Case"""

 
     @classmethod
     def setUpClass(cls):
 
     @classmethod
     def setUpClass(cls):


@@ -45,39 +53,59 @@ class TestLB(VppTestCase):
                 i.disable_ipv6_ra()
                 i.resolve_arp()
                 i.resolve_ndp()
                 i.disable_ipv6_ra()
                 i.resolve_arp()
                 i.resolve_ndp()

-            dst4 = socket.inet_pton(socket.AF_INET, "10.0.0.0")
-            dst6 = socket.inet_pton(socket.AF_INET6, "2002::")
-            cls.vapi.ip_add_del_route(dst4, 24, cls.pg1.remote_ip4n)
-            cls.vapi.ip_add_del_route(dst6, 16, cls.pg1.remote_ip6n, is_ipv6=1)
-            cls.vapi.cli("lb conf ip4-src-address 39.40.41.42")
-            cls.vapi.cli("lb conf ip6-src-address 2004::1")
+
+            dst4 = VppIpRoute(
+                cls,
+                "10.0.0.0",
+                24,
+                [VppRoutePath(cls.pg1.remote_ip4, INVALID_INDEX)],
+                register=False,
+            )
+            dst4.add_vpp_config()
+            dst6 = VppIpRoute(
+                cls,
+                "2002::",
+                16,
+                [VppRoutePath(cls.pg1.remote_ip6, INVALID_INDEX)],
+                register=False,
+            )
+            dst6.add_vpp_config()
+            cls.vapi.lb_conf(ip4_src_address="39.40.41.42", ip6_src_address="2004::1")

         except Exception:
             super(TestLB, cls).tearDownClass()
             raise
 
         except Exception:
             super(TestLB, cls).tearDownClass()
             raise
 

+    @classmethod
+    def tearDownClass(cls):
+        super(TestLB, cls).tearDownClass()
+

     def tearDown(self):
         super(TestLB, self).tearDown()
     def tearDown(self):
         super(TestLB, self).tearDown()

-        if not self.vpp_dead:
-            info(self.vapi.cli("show lb vip verbose"))
+
+    def show_commands_at_teardown(self):
+        self.logger.info(self.vapi.cli("show lb vip verbose"))

 
     def getIPv4Flow(self, id):
 
     def getIPv4Flow(self, id):

-        return (IP(dst="90.0.%u.%u" % (id / 255, id % 255),
-                   src="40.0.%u.%u" % (id / 255, id % 255)) /
-                UDP(sport=10000 + id, dport=20000 + id))
+        return IP(
+            dst="90.0.%u.%u" % (id / 255, id % 255),
+            src="40.0.%u.%u" % (id / 255, id % 255),
+        ) / UDP(sport=10000 + id, dport=20000)

 
     def getIPv6Flow(self, id):
 
     def getIPv6Flow(self, id):

-        return (IPv6(dst="2001::%u" % (id), src="fd00:f00d:ffff::%u" % (id)) /
-                UDP(sport=10000 + id, dport=20000 + id))
+        return IPv6(dst="2001::%u" % (id), src="fd00:f00d:ffff::%u" % (id)) / UDP(
+            sport=10000 + id, dport=20000
+        )

 
     def generatePackets(self, src_if, isv4):
 
     def generatePackets(self, src_if, isv4):

+        self.reset_packet_infos()

         pkts = []
         for pktid in self.packets:
         pkts = []
         for pktid in self.packets:

-            info = self.create_packet_info(src_if.sw_if_index, pktid)
+            info = self.create_packet_info(src_if, self.pg1)

             payload = self.info_to_payload(info)
             ip = self.getIPv4Flow(pktid) if isv4 else self.getIPv6Flow(pktid)
             payload = self.info_to_payload(info)
             ip = self.getIPv4Flow(pktid) if isv4 else self.getIPv6Flow(pktid)

-            packet = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
-                      ip /
-                      Raw(payload))
+            packet = (
+                Ether(dst=src_if.local_mac, src=src_if.remote_mac) / ip / Raw(payload)
+            )

             self.extend_packet(packet, 128)
             info.data = packet.copy()
             pkts.append(packet)
             self.extend_packet(packet, 128)
             info.data = packet.copy()
             pkts.append(packet)


@@ -88,29 +116,26 @@ class TestLB(VppTestCase):
         self.assertEqual(gre.proto, 0x0800 if isv4 else 0x86DD)
         self.assertEqual(gre.flags, 0)
         self.assertEqual(gre.version, 0)
         self.assertEqual(gre.proto, 0x0800 if isv4 else 0x86DD)
         self.assertEqual(gre.flags, 0)
         self.assertEqual(gre.version, 0)

-        inner = IPver(str(gre.payload))
-        payload_info = self.payload_to_info(str(inner[Raw]))
-        packet_index = payload_info.index
-        self.info = self.get_next_packet_info_for_interface2(self.pg0.sw_if_index,
-                                                             payload_info.dst,
-                                                             self.info)
-        self.assertEqual(str(inner), str(self.info.data[IPver]))
-
-    def checkCapture(self, gre4, isv4):
-        out = self.pg0.get_capture()
-        # This check is edited because RA appears in output, maybe disable RA?
-        # self.assertEqual(len(out), 0)
-        self.assertLess(len(out), 20)
-        out = self.pg1.get_capture()
-        self.assertEqual(len(out), len(self.packets))
+        inner = IPver(scapy.compat.raw(gre.payload))
+        payload_info = self.payload_to_info(inner[Raw])
+        self.info = self.packet_infos[payload_info.index]
+        self.assertEqual(payload_info.src, self.pg0.sw_if_index)
+        self.assertEqual(
+            scapy.compat.raw(inner), scapy.compat.raw(self.info.data[IPver])
+        )
+
+    def checkCapture(self, encap, isv4, src_ip_sticky=False):
+        self.pg0.assert_nothing_captured()
+        out = self.pg1.get_capture(len(self.packets))

 
         load = [0] * len(self.ass)
 
         load = [0] * len(self.ass)

+        sticky_as = {}

         self.info = None
         for p in out:
             try:
                 asid = 0
                 gre = None
         self.info = None
         for p in out:
             try:
                 asid = 0
                 gre = None

-                if gre4:
+                if encap == "gre4":

                     ip = p[IP]
                     asid = int(ip.dst.split(".")[3])
                     self.assertEqual(ip.version, 4)
                     ip = p[IP]
                     asid = int(ip.dst.split(".")[3])
                     self.assertEqual(ip.version, 4)


@@ -119,9 +144,9 @@ class TestLB(VppTestCase):
                     self.assertEqual(ip.dst, "10.0.0.%u" % asid)
                     self.assertEqual(ip.proto, 47)
                     self.assertEqual(len(ip.options), 0)
                     self.assertEqual(ip.dst, "10.0.0.%u" % asid)
                     self.assertEqual(ip.proto, 47)
                     self.assertEqual(len(ip.options), 0)

-                    self.assertGreaterEqual(ip.ttl, 64)

                     gre = p[GRE]
                     gre = p[GRE]

-                else:
+                    self.checkInner(gre, isv4)
+                elif encap == "gre6":

                     ip = p[IPv6]
                     asid = ip.dst.split(":")
                     asid = asid[len(asid) - 1]
                     ip = p[IPv6]
                     asid = ip.dst.split(":")
                     asid = asid[len(asid) - 1]


@@ -132,29 +157,74 @@ class TestLB(VppTestCase):
                     self.assertEqual(ip.src, "2004::1")
                     self.assertEqual(
                         socket.inet_pton(socket.AF_INET6, ip.dst),
                     self.assertEqual(ip.src, "2004::1")
                     self.assertEqual(
                         socket.inet_pton(socket.AF_INET6, ip.dst),

-                        socket.inet_pton(socket.AF_INET6, "2002::%u" % asid)
+                        socket.inet_pton(socket.AF_INET6, "2002::%u" % asid),

                     )
                     self.assertEqual(ip.nh, 47)
                     )
                     self.assertEqual(ip.nh, 47)

-                    self.assertGreaterEqual(ip.hlim, 64)

                     # self.assertEqual(len(ip.options), 0)
                     # self.assertEqual(len(ip.options), 0)

-                    gre = GRE(str(p[IPv6].payload))
-                self.checkInner(gre, isv4)
+                    gre = GRE(scapy.compat.raw(p[IPv6].payload))
+                    self.checkInner(gre, isv4)
+                elif encap == "l3dsr":
+                    ip = p[IP]
+                    asid = int(ip.dst.split(".")[3])
+                    self.assertEqual(ip.version, 4)
+                    self.assertEqual(ip.flags, 0)
+                    self.assertEqual(ip.dst, "10.0.0.%u" % asid)
+                    self.assertEqual(ip.tos, 0x1C)
+                    self.assertEqual(len(ip.options), 0)
+                    self.assert_ip_checksum_valid(p)
+                    if ip.proto == IP_PROTOS.tcp:
+                        self.assert_tcp_checksum_valid(p)
+                    elif ip.proto == IP_PROTOS.udp:
+                        self.assert_udp_checksum_valid(p)
+                elif encap == "nat4":
+                    ip = p[IP]
+                    asid = int(ip.dst.split(".")[3])
+                    self.assertEqual(ip.version, 4)
+                    self.assertEqual(ip.flags, 0)
+                    self.assertEqual(ip.dst, "10.0.0.%u" % asid)
+                    self.assertEqual(ip.proto, 17)
+                    self.assertEqual(len(ip.options), 0)
+                    udp = p[UDP]
+                    self.assertEqual(udp.dport, 3307)
+                elif encap == "nat6":
+                    ip = p[IPv6]
+                    asid = ip.dst.split(":")
+                    asid = asid[len(asid) - 1]
+                    asid = 0 if asid == "" else int(asid)
+                    self.assertEqual(ip.version, 6)
+                    self.assertEqual(ip.tc, 0)
+                    self.assertEqual(ip.fl, 0)
+                    self.assertEqual(
+                        socket.inet_pton(socket.AF_INET6, ip.dst),
+                        socket.inet_pton(socket.AF_INET6, "2002::%u" % asid),
+                    )
+                    self.assertEqual(ip.nh, 17)
+                    self.assertGreaterEqual(ip.hlim, 63)
+                    udp = UDP(scapy.compat.raw(p[IPv6].payload))
+                    self.assertEqual(udp.dport, 3307)

                 load[asid] += 1
                 load[asid] += 1

+
+                # In case of source ip sticky, check that packets with same
+                # src_ip are routed to same as.
+                if src_ip_sticky and sticky_as.get(ip.src, asid) != asid:
+                    raise Exception("Packets with same src_ip are routed to another as")
+                sticky_as[ip.src] = asid
+

             except:
             except:

-                error("Unexpected or invalid packet:")
-                p.show()
+                self.logger.error(ppp("Unexpected or invalid packet:", p))

                 raise
 
         # This is just to roughly check that the balancing algorithm
                 raise
 
         # This is just to roughly check that the balancing algorithm

-        # is not completly biased.
+        # is not completely biased.

         for asid in self.ass:
         for asid in self.ass:

-            if load[asid] < len(self.packets) / (len(self.ass) * 2):
-                self.log(
-                    "ASS is not balanced: load[%d] = %d" % (asid, load[asid]))
+            if load[asid] < int(len(self.packets) / (len(self.ass) * 2)):
+                self.logger.error(
+                    "ASS is not balanced: load[%d] = %d" % (asid, load[asid])
+                )

                 raise Exception("Load Balancer algorithm is biased")
 
     def test_lb_ip4_gre4(self):
                 raise Exception("Load Balancer algorithm is biased")
 
     def test_lb_ip4_gre4(self):

-        """ Load Balancer IP4 GRE4 """
+        """Load Balancer IP4 GRE4 on vip case"""

         try:
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre4")
             for asid in self.ass:
         try:
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre4")
             for asid in self.ass:


@@ -163,15 +233,16 @@ class TestLB(VppTestCase):
             self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
             self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()

-            self.checkCapture(gre4=True, isv4=True)
+            self.checkCapture(encap="gre4", isv4=True)

 
         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre4 del")
 
         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre4 del")

+            self.vapi.cli("test lb flowtable flush")

 
     def test_lb_ip6_gre4(self):
 
     def test_lb_ip6_gre4(self):

-        """ Load Balancer IP6 GRE4 """
+        """Load Balancer IP6 GRE4 on vip case"""

 
         try:
             self.vapi.cli("lb vip 2001::/16 encap gre4")
 
         try:
             self.vapi.cli("lb vip 2001::/16 encap gre4")


@@ -182,14 +253,15 @@ class TestLB(VppTestCase):
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 

-            self.checkCapture(gre4=True, isv4=False)
+            self.checkCapture(encap="gre4", isv4=False)

         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 2001::/16 10.0.0.%u del" % (asid))
             self.vapi.cli("lb vip 2001::/16 encap gre4 del")
         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 2001::/16 10.0.0.%u del" % (asid))
             self.vapi.cli("lb vip 2001::/16 encap gre4 del")

+            self.vapi.cli("test lb flowtable flush")

 
     def test_lb_ip4_gre6(self):
 
     def test_lb_ip4_gre6(self):

-        """ Load Balancer IP4 GRE6 """
+        """Load Balancer IP4 GRE6 on vip case"""

         try:
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre6")
             for asid in self.ass:
         try:
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre6")
             for asid in self.ass:


@@ -199,17 +271,15 @@ class TestLB(VppTestCase):
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 

-            # Scapy fails parsing GRE over IPv6.
-            # This check is therefore disabled for now.
-            # One can easily patch layers/inet6.py to fix the issue.
-            self.checkCapture(gre4=False, isv4=True)
+            self.checkCapture(encap="gre6", isv4=True)

         finally:
             for asid in self.ass:
         finally:
             for asid in self.ass:

-                self.vapi.cli("lb as 90.0.0.0/8 2002::%u" % (asid))
+                self.vapi.cli("lb as 90.0.0.0/8 2002::%u del" % (asid))

             self.vapi.cli("lb vip 90.0.0.0/8 encap gre6 del")
             self.vapi.cli("lb vip 90.0.0.0/8 encap gre6 del")

+            self.vapi.cli("test lb flowtable flush")

 
     def test_lb_ip6_gre6(self):
 
     def test_lb_ip6_gre6(self):

-        """ Load Balancer IP6 GRE6 """
+        """Load Balancer IP6 GRE6 on vip case"""

         try:
             self.vapi.cli("lb vip 2001::/16 encap gre6")
             for asid in self.ass:
         try:
             self.vapi.cli("lb vip 2001::/16 encap gre6")
             for asid in self.ass:


@@ -219,8 +289,261 @@ class TestLB(VppTestCase):
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 
             self.pg_enable_capture(self.pg_interfaces)
             self.pg_start()
 

-            self.checkCapture(gre4=False, isv4=False)
+            self.checkCapture(encap="gre6", isv4=False)

         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 2001::/16 2002::%u del" % (asid))
             self.vapi.cli("lb vip 2001::/16 encap gre6 del")
         finally:
             for asid in self.ass:
                 self.vapi.cli("lb as 2001::/16 2002::%u del" % (asid))
             self.vapi.cli("lb vip 2001::/16 encap gre6 del")

+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_gre4_port(self):
+        """Load Balancer IP4 GRE4 on per-port-vip case"""
+        try:
+            self.vapi.cli("lb vip 90.0.0.0/8 protocol udp port 20000 encap gre4")
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="gre4", isv4=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u del" % (asid)
+                )
+            self.vapi.cli("lb vip 90.0.0.0/8 protocol udp port 20000 encap gre4 del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip6_gre4_port(self):
+        """Load Balancer IP6 GRE4 on per-port-vip case"""
+
+        try:
+            self.vapi.cli("lb vip 2001::/16 protocol udp port 20000 encap gre4")
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 10.0.0.%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=False))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+
+            self.checkCapture(encap="gre4", isv4=False)
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 10.0.0.%u del" % (asid)
+                )
+            self.vapi.cli("lb vip 2001::/16 protocol udp port 20000 encap gre4 del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_gre6_port(self):
+        """Load Balancer IP4 GRE6 on per-port-vip case"""
+        try:
+            self.vapi.cli("lb vip 90.0.0.0/8 protocol udp port 20000 encap gre6")
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 2002::%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+
+            self.checkCapture(encap="gre6", isv4=True)
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 2002::%u del" % (asid)
+                )
+            self.vapi.cli("lb vip 90.0.0.0/8 protocol udp port 20000 encap gre6 del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip6_gre6_port(self):
+        """Load Balancer IP6 GRE6 on per-port-vip case"""
+        try:
+            self.vapi.cli("lb vip 2001::/16 protocol udp port 20000 encap gre6")
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 2002::%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=False))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+
+            self.checkCapture(encap="gre6", isv4=False)
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 2002::%u del" % (asid)
+                )
+            self.vapi.cli("lb vip 2001::/16 protocol udp port 20000 encap gre6 del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_l3dsr(self):
+        """Load Balancer IP4 L3DSR on vip case"""
+        try:
+            self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7")
+            for asid in self.ass:
+                self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u" % (asid))
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="l3dsr", isv4=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
+            self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7 del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_l3dsr_src_ip_sticky(self):
+        """Load Balancer IP4 L3DSR on vip with src_ip_sticky case"""
+        try:
+            self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7 src_ip_sticky")
+            for asid in self.ass:
+                self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u" % (asid))
+
+            # Generate duplicated packets
+            pkts = self.generatePackets(self.pg0, isv4=True)
+            pkts = pkts[: len(pkts) // 2]
+            pkts = pkts + pkts
+
+            self.pg0.add_stream(pkts)
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="l3dsr", isv4=True, src_ip_sticky=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
+            self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7 src_ip_sticky del")
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_l3dsr_port(self):
+        """Load Balancer IP4 L3DSR on per-port-vip case"""
+        try:
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap l3dsr dscp 7"
+            )
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="l3dsr", isv4=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u del" % (asid)
+                )
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap l3dsr dscp 7 del"
+            )
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_l3dsr_port_src_ip_sticky(self):
+        """Load Balancer IP4 L3DSR on per-port-vip with src_ip_sticky case"""
+        try:
+            # This VIP at port 1000 does not receive packets, but is defined
+            # as a dummy to verify that the src_ip_sticky flag can be set
+            # independently for each port.
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 10000 encap l3dsr dscp 7"
+            )
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap l3dsr dscp 7 src_ip_sticky"
+            )
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u" % (asid)
+                )
+
+            # Generate duplicated packets
+            pkts = self.generatePackets(self.pg0, isv4=True)
+            pkts = pkts[: len(pkts) // 2]
+            pkts = pkts + pkts
+
+            self.pg0.add_stream(pkts)
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="l3dsr", isv4=True, src_ip_sticky=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u del" % (asid)
+                )
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap l3dsr dscp 7 src_ip_sticky del"
+            )
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 10000 encap l3dsr dscp 7 del"
+            )
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip4_nat4_port(self):
+        """Load Balancer IP4 NAT4 on per-port-vip case"""
+        try:
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap nat4"
+                " type clusterip target_port 3307"
+            )
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="nat4", isv4=True)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 90.0.0.0/8 protocol udp port 20000 10.0.0.%u del" % (asid)
+                )
+            self.vapi.cli(
+                "lb vip 90.0.0.0/8 protocol udp port 20000 encap nat4"
+                " type clusterip target_port 3307 del"
+            )
+            self.vapi.cli("test lb flowtable flush")
+
+    def test_lb_ip6_nat6_port(self):
+        """Load Balancer IP6 NAT6 on per-port-vip case"""
+        try:
+            self.vapi.cli(
+                "lb vip 2001::/16 protocol udp port 20000 encap nat6"
+                " type clusterip target_port 3307"
+            )
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 2002::%u" % (asid)
+                )
+
+            self.pg0.add_stream(self.generatePackets(self.pg0, isv4=False))
+            self.pg_enable_capture(self.pg_interfaces)
+            self.pg_start()
+            self.checkCapture(encap="nat6", isv4=False)
+
+        finally:
+            for asid in self.ass:
+                self.vapi.cli(
+                    "lb as 2001::/16 protocol udp port 20000 2002::%u del" % (asid)
+                )
+            self.vapi.cli(
+                "lb vip 2001::/16 protocol udp port 20000 encap nat6"
+                " type clusterip target_port 3307 del"
+            )
+            self.vapi.cli("test lb flowtable flush")